Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.idetronic.subur.service.impl; import java.util.ArrayList; import java.util.Date; import java.util.List; import com.idetronic.subur.ExpertiseException; import com.idetronic.subur.NoSuchResearchInterestException; import com.idetronic.subur.ResearchInterestException; import com.idetronic.subur.model.Expertise; import com.idetronic.subur.model.ResearchInterest; import com.idetronic.subur.service.base.ResearchInterestLocalServiceBaseImpl; import com.idetronic.subur.util.SuburAssetUtil; import com.liferay.counter.service.CounterLocalServiceUtil; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.util.OrderByComparator; import com.liferay.portal.kernel.util.OrderByComparatorFactoryUtil; import com.liferay.portal.kernel.util.StringPool; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.model.Group; import com.liferay.portal.model.User; import com.liferay.portal.service.ServiceContext; /** * The implementation of the research interest local service. * * <p> * All custom service methods should be put in this class. Whenever methods are added, rerun ServiceBuilder to copy their definitions into the {@link com.idetronic.subur.service.ResearchInterestLocalService} interface. * * <p> * This is a local service. Methods of this service will not have security checks based on the propagated JAAS credentials because this service can only be accessed from within the same VM. * </p> * * @author Mazlan Mat * @see com.idetronic.subur.service.base.ResearchInterestLocalServiceBaseImpl * @see com.idetronic.subur.service.ResearchInterestLocalServiceUtil */ public class ResearchInterestLocalServiceImpl extends ResearchInterestLocalServiceBaseImpl { /* * NOTE FOR DEVELOPERS: * * Never reference this interface directly. Always use {@link com.idetronic.subur.service.ResearchInterestLocalServiceUtil} to access the research interest local service. */ public List<ResearchInterest> checkResearchInterests(long userId, Group group, String[] names) throws SystemException, PortalException { List<ResearchInterest> researchInterests = new ArrayList<ResearchInterest>(); for (String name : names) { ResearchInterest researchInterest = null; try { researchInterest = getResearchInterest(group.getGroupId(), StringUtil.lowerCase(name)); } catch (NoSuchResearchInterestException nse) { ServiceContext serviceContext = new ServiceContext(); serviceContext.setAddGroupPermissions(true); serviceContext.setAddGuestPermissions(true); serviceContext.setScopeGroupId(group.getGroupId()); researchInterest = addResearchInterest(userId, name, serviceContext); } if (researchInterest != null) researchInterests.add(researchInterest); } return researchInterests; } @Override public ResearchInterest addResearchInterest(long userId, String name, ServiceContext serviceContext) throws SystemException, PortalException { User user = userPersistence.findByPrimaryKey(userId); long groupId = serviceContext.getScopeGroupId(); Date now = new Date(); long researchInterestId = CounterLocalServiceUtil.increment(ResearchInterest.class.getName()); ResearchInterest researchInterest = researchInterestPersistence.create(researchInterestId); researchInterest.setGroupId(groupId); researchInterest.setCompanyId(user.getCompanyId()); researchInterest.setUserId(userId); ; researchInterest.setCreateDate(now); researchInterest.setModifiedDate(now); name = StringUtil.trim(name); validate(name); researchInterest.setName(name); researchInterest.setIndexedName(StringUtil.toLowerCase(name)); researchInterestPersistence.update(researchInterest); return researchInterest; } @Override public ResearchInterest getResearchInterest(long groupId, String name) throws NoSuchResearchInterestException, SystemException { return researchInterestPersistence.findByGroupName(groupId, name); } public List<ResearchInterest> findByGroupsName(long[] groupIds, String name, int start, int end, OrderByComparator obc) throws SystemException { return researchInterestFinder.filterFindByG_N(groupIds, name, start, end, obc); } protected void validate(String name) throws PortalException { if (!SuburAssetUtil.isValidWord(name)) { throw new ResearchInterestException( StringUtil.merge(SuburAssetUtil.INVALID_CHARACTERS, StringPool.SPACE), ResearchInterestException.INVALID_CHARACTER); } } @Override public ResearchInterest incrementAuthorCount(long researchInterestId) throws SystemException { ResearchInterest researchInterest; try { researchInterest = researchInterestPersistence.findByPrimaryKey(researchInterestId); researchInterest.setAuthorCount(researchInterest.getAuthorCount() + 1); researchInterestPersistence.update(researchInterest); return researchInterest; } catch (NoSuchResearchInterestException e) { // TODO Auto-generated catch block return null; } } @Override public ResearchInterest decrementAuthorCount(long researchInterestId) throws SystemException { ResearchInterest researchInterest; try { researchInterest = researchInterestPersistence.findByPrimaryKey(researchInterestId); researchInterest.setAuthorCount(researchInterest.getAuthorCount() - 1); researchInterestPersistence.update(researchInterest); return researchInterest; } catch (NoSuchResearchInterestException e) { // TODO Auto-generated catch block return null; } } public List<ResearchInterest> getTop10(long groupId) throws SystemException { OrderByComparator obc = OrderByComparatorFactoryUtil.create("Subur_ResearchInterest", "authorCount", false); return researchInterestPersistence.findByGroup(groupId, 0, 9, obc); } }